mirror of
https://github.com/IfcOpenShell/IfcOpenShell.git
synced 2026-08-10 09:48:32 +00:00
Bruno Postle
f46be80193
assign_product creates IfcRelAssignsToProduct linking a structural member to a physical building element. assign_to_building creates IfcRelServicesBuildings linking a structural analysis model to a building. add_topology_representation creates IfcTopologyRepresentation for structural elements, inferring the representation type from the item class. Generated with the assistance of an AI coding tool.
65 lines
2.5 KiB
Python
65 lines
2.5 KiB
Python
# IfcOpenShell - IFC toolkit and geometry engine
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# Copyright (C) 2026 Dion Moult <dion@thinkmoult.com>
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#
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# This file is part of IfcOpenShell.
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#
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# IfcOpenShell is free software: you can redistribute it and/or modify
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# it under the terms of the GNU Lesser General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# IfcOpenShell is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU Lesser General Public License for more details.
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#
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# You should have received a copy of the GNU Lesser General Public License
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# along with IfcOpenShell. If not, see <http://www.gnu.org/licenses/>.
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# This file was generated with the assistance of an AI coding tool.
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import ifcopenshell
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import ifcopenshell.api.root
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def assign_product(
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file: ifcopenshell.file,
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relating_product: ifcopenshell.entity_instance,
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related_object: ifcopenshell.entity_instance,
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) -> ifcopenshell.entity_instance:
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"""Links an object to a product via IfcRelAssignsToProduct
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Typically used to associate a physical building element with a structural
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analysis member (IfcStructuralSurfaceMember, IfcStructuralCurveMember) so
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that analysis results can be traced back to the physical model.
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:param relating_product: The IfcProduct that the object is assigned to,
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typically an IfcStructuralMember.
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:param related_object: The IfcObjectDefinition being assigned, typically
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a physical building element such as an IfcWall or IfcSlab.
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:return: The IfcRelAssignsToProduct relationship.
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Example:
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.. code:: python
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wall = ifcopenshell.api.root.create_entity(model, ifc_class="IfcWall")
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member = ifcopenshell.api.root.create_entity(
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model, ifc_class="IfcStructuralSurfaceMember")
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ifcopenshell.api.structural.assign_product(model,
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relating_product=member, related_object=wall)
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"""
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for rel in relating_product.ReferencedBy or []:
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if not rel.is_a("IfcRelAssignsToProduct"):
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continue
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if related_object in rel.RelatedObjects:
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return rel
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related_objects = list(rel.RelatedObjects)
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related_objects.append(related_object)
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rel.RelatedObjects = related_objects
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return rel
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rel = ifcopenshell.api.root.create_entity(file, ifc_class="IfcRelAssignsToProduct")
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rel.RelatingProduct = relating_product
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rel.RelatedObjects = [related_object]
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return rel
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